rivers = {
    '尼罗河': "埃及",
    '长江': '中国',
    '恒河': '印度',
    '密西西比河': '美国',
    '泰晤士河': '英国'
}

for river,nation in rivers.items():
    print(f"The {river} runs through {nation}")
print("\n河流")
for river in rivers.keys():
    print(river)
print("\n国家")
for nation in rivers.values():
    print(nation)